Skip to content
Dx

ICD-10-CM 2027

ICD-10 code for Phlyctenular keratoconjunctivitis

H16.25

Phlyctenular keratoconjunctivitis

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Keratoconjunctivitis › phlyctenular”. Page updated September 29, 2026.

About coding Phlyctenular keratoconjunctivitis

The ICD-10-CM code for Phlyctenular keratoconjunctivitis is H16.25 (Phlyctenular keratoconjunctivitis).

Within H16.2 (keratoconjunctivitis), H16.25 is specifically for Phlyctenular keratoconjunctivitis. Related codes cover unspecified keratoconjunctivitis (H16.20), exposure keratoconjunctivitis (H16.21), sicca, not specified as Sjogren's (H16.22), Neurotrophic keratoconjunctivitis (H16.23), Ophthalmia nodosa (H16.24), vernal keratoconjunctivitis, with limbar and corneal involvement (H16.26) and other keratoconjunctivitis (H16.29).

To report this condition, pick the subcode that matches the documentation: H16.251 (right eye), H16.252 (left eye), H16.253 (bilateral) and H16.259 (unspecified eye).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about Phlyctenular keratoconjunctivitis ICD-10 codes

What is the ICD-10 code for Phlyctenular keratoconjunctivitis?

H16.25 — Phlyctenular keratoconjunctivitis (a header code; report a more specific subcode).

Is H16.25 billable?

No. H16.25 is a header code. Report one of its more specific subcodes instead.